Efficient Inter-mode Interference Cancellation Method for OAM Multiplexing in the Presence of Beam Axis Misalignment

研究成果: Conference contribution

抄録

Orbital angular momentum (OAM) multiplexing suffers from inter-mode interference (IMI) due to a beam axis misalignment. However, the traditional IMI cancellation method assumes that the IMI rises from all OAM modes, which results in heavy computational loads. This paper proposes an efficient IMI cancellation method for OAM multiplexing in the presence of a beam axis misalignment. In the proposed method, considering that the interference from adjacent OAM modes is dominant in such a misalignment, IMI cancellation is performed by considering only the neighboring OAM modes. This method can reduce the computational cost while retaining the transmission performance. Moreover, the minimum mean square error (MMSE) is adopted as the equalizer criterion to suppress noise enhancement. The effectiveness of the proposed method as compared with the traditional IMI cancellation method is demonstrated in terms of the system capacity and computational complexity through computer simulations.

本文言語English
ホスト出版物のタイトル2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781728194417
DOI
出版ステータスPublished - 2021 6
イベント2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Virtual, Online
継続期間: 2021 6 142021 6 23

出版物シリーズ

名前2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings

Conference

Conference2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021
CityVirtual, Online
Period21/6/1421/6/23

ASJC Scopus subject areas

  • 人工知能
  • コンピュータ ネットワークおよび通信
  • ハードウェアとアーキテクチャ
  • 情報システムおよび情報管理

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